Writing pen with double-end USB flash disk function

The utility model discloses a writing pen with a double-end USB flash disk function, and relates to the technical field of USB flash disks. The writing pen comprises a writing pen body, and a pen point is arranged at the writing end of the writing pen body; the double-end storage assembly is detachably installed on the side, away from the pen point, of the writing pen body, the double-end storage assembly is provided with at least two connecting plugs, and the connecting plugs are used for data connection of external terminal equipment; the writing pen comprises a double-end storage assembly and a pen cap, the pen cap is detachably installed on the side, away from the writing pen body, of the double-end storage assembly, the pen cap is used for shielding a connecting plug on the side, away from the writing pen body, of the double-end storage assembly, and the pen cap is further used for being combined with the double-end storage assembly and the writing pen body to form the writing pen. According to the techn